Electric kettle with PID control

[The Pol]

Can I ask a question? I was under the impression that the threads on the water heater elements were no NPT, but actually NPS, or BSP... straight threads and not tapered like normal pipe threads?
If this is the case, McMaster has a brass Hex Bushing (4978K181) that could be married up with the complimentary brass BSP components to build this same bulkhead, with brass, and using the BSP threads that will match those on the water heater element.

 

[stevehaun]

The threads are NPS - national pipe thread straight. I don't think BSP will work - the threads have a different pitch.

 

[LooyvilleLarry]

Here is the PTFE nut. 1" NPT.

I am using a 1" coupling, that is being welded in today. the element threads into it just fine.

So, for a weldless config, I think that bushing would work great.